Improvement in machines for making horseshoe-nails



3 Sheets-Sheet I. R. M. CU M MI N GS.

MACHINE FOR MAKING H0 SHOE NAILS. I No. 190,011.

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Patented Apr'1124, 1877.

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MACHINE FOR MAKING HORSESHOE NAILS. No. 190,011. Patented April 24,1877.

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ATTORN EY N. PETERS. FHDTO-LYTHOGRAPNER, WASHINGTON. D C.

3 Sheets-Sheet 3.

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MACHINE FOR MAKING HQRSESHOE NAILS.

, Patented April 24, 1877.

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RICHARD M. CUMMINGS, OF NASHUA, NEW HAMPSHIRE.

IMPROVEMENT IN MACHINES FOR MAKING HORSESHOE-NAILS- Specificationforming part of Letters Patent N 0. 190,011, dated April 24, 1877application filed April 7,1877.

tion thereof, reference being had to the accompanying drawings, and tothe letters of reference marked thereon, making a part of thisspecification.

The nature of my invention consists in the construction and arrangementof a machine for making horseshoe-nails, as will be hereinafter morefully set forth, and pointed out by the claims.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawings, in whichFigure 1 is a side elevation of my entire machine. Fig. 2 is a rear viewof the same. Figs. 3 to 8 are detached views of detailed parts thereof.

A represents the bed of my machine, upon which is erected a suitableframe-work, B, to which all the working parts of the machine areconnected.

O is the driving-shaft, to which power is applied by crank or belt, orin any other suitable manner. On this shaft, on one side of the frame,is secured a pinion, D which gears with a cog-wheel, D this with acogwheel, D and this again with a cog-wheel, D, said cog-wheels beingsecured upon their respective shafts, and through which motion iscommunicated to all parts of the machine.

Within the frame B, on the shaft on of the cog-wheel D is secured apinion, b, which meshes with a pinion, d, on a shaft, 0, and also with acog-wheel, E, mounted upon a stud in the frame.

The cog-wheel E is, by a crank-pin and pitman, F, connected with an arm,G projecting from a rocking shaft, U, which has a longitudinal groove.On this shaft is placed an arm, G, which has a feather entering thegroove in the shaft, so that said arm is capable of being moved on theshaft, and yet rock with it back and forth.

, The arm Gris placed between two collars,

X X, formed on the projecting lower end of a sliding block, V, the shaftor rod U passing through said collars, and the block V slidinglongitudinally upon an arm, A, projecting from the frame B.

At the upper end of the arm G is pivoted a slotted rack, G which passesthrough a vertical slot in the sliding block V, and operates on apinion, f, secured on a shaft, h, within said block.

The shaft h passes through vertical slots in the sides of the block V,and has its bearings in the ends of a yoke, H, placed over the top ofthe block, as shown in Fig.2. From the block V a rod, is, extends upwardthrough the yoke H, with a knob, 70, on its upper end, and a spiralspring, 6, surrounding the rod, whereby the yoke is pressed downward,and yet allowed to yield upward.

Outside of the yoke H, on both ends of the shaft h, are secured cams O,which bear against ledges m on the sides of the sliding block V, forraising the yoke H, with the shaft, once during each revolution of saidshaft.

On the outer end of the shaft h is secured a collar, E, with spiralgroove, into which takes a guide-pin, D, secured to the yoke H, formoving the shaft h lengthwise out and in. On the inner end of the shafth is secured a clamp,'I, for holding the plate B, from which thenail-blanks are cut.

The sliding blockV is fed inward on the arm A by means of a rack-bar, F,operating on a pawl, H, pivoted to the block. The rackbarFis, by anelbow-lever, J, connected with a sliding .bar, Q, which is operated by acam, r, on the shaft a at one end, and by a spring, 1), at theother end.

On the shaft on is further secured a cogged segment, Z, which operates arack-bar, W, and to this rack-bar is secured a block, Y, carrying theclearer Y, this block moving upon a guide-bar, K, in which is alongitudinal groove for the clearer Y to work in.

To the block Y are also attached forwardly-extending spring-fingers L L,having upon their ends suitable jaws s s, fastened by setscrews.

The shafts a and e carry upon their ends rolls T T, which have suitablegrooves and recesses, as shown in Fig. 3, to receive the head and bodyof the nail.

In front of these rolls is a stationary funnel-shaped guide, M, for thepassage of the nails, the jaws s on the fingers L working immediately infront of said funnel. p is a spring to bring the rack-bar W back inposition. H

a is the shaft of the cog-wheel D and on the end of this shaft is acrank-pin, connected, by a pitman, b, with a cross-head, L, carrying thecutter I, which, in its downward movement, cuts the blank from the plateB, and forces the same into the die J below, where it is held by thepresser K, operated by a spring, t, as shown in Fig. 8.

a is the shaft of the cog-wheel D and this shaft passes through aplungerbox, R, secured to the side of the frame B, and within thisplunger-box is a hollow plunger, S, carrying the cutters O O at itslower end.

B is an interior plunger within the plunger S, said interior plungercarrying, at its lower end, the presser T, which works between thecutters O O.

The two plungers R and S are operated by cams v c on the shaft a asshown in Fig. 4. The presser T is held in the slot of the plunger R, andadjusted by suitable gibs and keys. The cutters O are made in halves,and riveted together, and held in two slots in the plunger S, andadjusted in the same manner.

On the front of the plunger S, at the lower end, are fastenedfork-springs P, as shown.

P is a slotted guide, adjustably attached to the die J, in which thenail-plate B works.

The operation of the machine is as follows: The cutter I descends andcuts the blank from l the plate B, carrying the blank into the die l J,where it is held by the head by the presser K until the next blank iscut, pushing the first toward the bottom of the die. Then the thirdblank is cut, pushing the second toward the bottom'of the die.

The first blank is then relieved, and carried to the rolls T by theclearer Y, passing through the funnel-shaped guide M, and carried to thespring-fork P by the fingers L, and trimmed by the cutters O, thespring-fork P holding the nail by the head while thegnailis beingfinished. Att he same time the blank is pointed by the inside presser Tupon the former N below, while the trimmings are carried down on saidformer.

The finished nail is pushed through the fork P by the head of thefollowing nail.

The fingers L are opened when drawn back over the nose of the guide M,allowing the head of the nail to pass through, and, while the shank ofthe nail is still in the rolls, the fingers clasp the nail under thehead, and

move with the same velocity as the nail in the roll by means of thecogged segment Z, rack W, and block Y.

The plate B, from which the blanks are cut, is fed by means of the blockV, sliding on the arm A, and the collars X, formed on said block, slideon the rod or shaft U by means of F and pawl H, which are driven by therod Q.

The plate B makes a half-revolution after each blank is cut, firstforward and then backward, so that the blanks will be cut from the platealternately from opposite sides, and thus making no waste.

The plate is cleared from the punch or cutter I while revolving by thespiral collar E and guide D, which vibrate the plate clamp or holderevery half-revolution. This plateclamp is revolved by the pinion andpawl or rack passing through the movable block V. The plate is keptparallel with the die J by the yoke H and spring '5, and ,the edges ofthe plate are cleared from the die while revolving by the yoke rising,from the action of the cams G on the ledges m.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

U, rack-bar F, and pawl H, substantially as and for the purposes hereinset forth.

4:. The spirally-grooved collar E and guide D, in combination with therocking shaft h, carrying the plate-clamp I, substantially as and forthe purposes herein set forth.

5. The cams O 0, attached to the rocking shaft h, in combination withthe yoke H and sliding block V, with ledges m m, substantially as andfor the purposes herein set forth.

6. The combination of the longitudinallygrooved guide-bar K, the clearerY, and sliding block Y, operated by means of the rackbar W, coggedsegment Z, and spring 1) sub stantially as and for the purposes hereinset forth.

7. The spring-fingers L L, provided with the jaws s s, and attached tothe sliding block Y, to operate substantially as and for the purposesherein set forth.

8. The combination of the sliding block Y with clearer Y, the guide-barK, rollers T T, guide M, and spring-fingers L L, with jaws s s, allconstructed substantially as and for the purposes herein set forth.

9. The presser K, in combination with the 12. The spring-fork P,attached to the plundie J and the spring t, substantially as and ger S,and operating as and for the purposes for the purposesh'erein set forth.herein set forth.

10. The combination of the reciprocating In testimony that I claim theforegoing I cutter I and the stationary died with springhave hereuntoset my hand this 4th day of presser K, substantially as and for the pur-April, 1877. poses herein set forth.

11. The combination of the plunger S, with I OUMMINGS' adjustablecutters O O, the plunger R, with Witnesses: adjustable presser T, andthe former N, sub- FRANK GAL'r,

'stantially as and for the purpose described. J. G. SOHROEDER.

